Motorola MVME2400 User Manual
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Glossary
GL-8
Computer Group Literature Center Web Site
G
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O
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A
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OS
Operating System. The software that manages the computer
resources, accesses files, and dispatches programs.
OTP
One-Time Programmable
palette
The range of colors available on the screen, not necessarily
simultaneously. For VGA, this is either 16 or 256 simultaneous
colors out of 262,144.
parallel port
A connector that can exchange data with an I/O device eight bits at
a time. This port is more commonly used for the connection of a
printer to a system.
PCI (local bus)
Peripheral Component Interconnect (local bus) (Intel). A high-
performance, 32-bit internal interconnect bus used for data transfer
to peripheral controller components, such as those for audio, video,
and graphics.
PCMCIA (bus)
Personal Computer Memory Card International Association (bus).
A standard external interconnect bus which allows peripherals
adhering to the standard to be plugged in and used without further
system modification.
PCR
PCI Configuration Register
PDS
Processor Direct Slot
PHB
PCI Host Bridge
physical address
A binary address that refers to the actual location of information
stored in secondary storage.
PIB
PCI-to-ISA Bridge
pixel
An acronym for picture element, and is also called a pel. A pixel is
the smallest addressable graphic on a display screen. In RGB
systems, the color of a pixel is defined by some Red intensity, some
Green intensity, and some Blue intensity.
PLL
Phase-Locked Loop
PMC
PCI Mezzanine Card
POWER
Performance Optimized With Enhanced RISC architecture (IBM)
PowerPC™
The trademark used to describe the Performance Optimized With
Enhanced RISC microprocessor architecture for Personal
Computers developed by the IBM Corporation. PowerPC is
superscalar, which means it can handle more than one instruction per